解析 python 中的 XML 文件

Question

**I have a XML file where i need to read it and save each column to an excel file. Can someone pls help.

I have some lines after the declare statement, But I want to parse from the table1 till /table1 can someone help me?

**<?xml version="1.0" encoding="Metadata" ?>
    <DECLARE  lmsid ="asdhgh"
     ...........
    </table1 name ="employee table" name ="E1 Enterprises" refid ="201"
     <data id = "ABC" emp = "dt">
     <country id ="m1" name =dt1">
     <rank text> "data"</rank text>
     <rank textd> "direction"</rank textd>
     <reference>
     <ref id ="9900m" id1="1000" ref="URL">
     </reference>
     </country>
    <data id = "xyz" emp = "dt1">
    <country id ="m2" name =dt2">
    <rank text> "data1"</rank text>
    <rank textd> "direction1"</rank textd>
    <reference>
    <ref id ="9900m" id1="2000" ref="URL">
    </reference>
    </country>
    </data id>
    ....
    </table1>
    </table1 name ="Manager table" name ="E1 Enterprises" refid ="202"
    <data id = "ARZ" emp = "dt">
    <country id ="m1" name =dt1">
     <rank text> "data"</rank text>
     <rank textd> "direction"</rank textd>
     <reference>
     <ref id ="9900m" id1="1000" ref="URL">
     </reference>
     </country>
     <data id = "QNC" emp = "dt1">
     <country id ="m2" name =dt2">
     <rank text> "data1"</rank text>
     <rank textd> "direction1"</rank textd>
     <reference>
     <ref id ="9900m" id1="2000" ref="URL">
     </reference>
     </country>
     </data id>
      ....
     </table1>
...

Thanks Aarush **

Answer 1

So I think you can just use BeautifulSoup to parse XML things. I found this snippet of code online

# Import BeautifulSoup
from bs4 import BeautifulSoup

content = []

# Read the XML file
with open("sample.xml", "r") as file:

    # Read each line in the file, readlines() returns a list of lines
    content = file.readlines()

    # Combine the lines in the list into a string
    content = "".join(content)
    soup = BeautifulSoup(content, "lxml")

    #Do things

BS4 can find the xml tags pretty easy. Its docs are extensive, but something like soup.find('data', id='xyz') if you were looking for that info. Then just export to csv with pandas or csv module.

Answer 2

Not sure what you mean by save each column. An XML has: - tag name - attributes - text

You can use the xml.dom.minidom module

>>> s = '<t><a name="1"></a><a name="2"></a></t>'
>>> x = xml.dom.minidom.parseString(s)
>>> a = x.getElementsByTagName("a")
>>> for i in a:
...     print i.getAttribute("name")
...     
1
2

You can also parse a.xml file. x = xml.dom.minidom.parse("c:\xmlFile.xml")

See more detail in the documentation:x = https://docs.python.org/2/library/xml.dom.minidom.html

Once you have the value you want to save into your excel you can run a SQL statement with pyodbc and the microsoft odbc driver(Microsoft Excel Driver (*.xls, *.xlsx, *.xlsm, *.xlsb)}):

import pyodbc

connection = pyodbc.connect("Driver={Microsoft Excel Driver (*.xls, *.xlsx, *.xlsm, *.xlsb)}; readonly=0; DBQ=C:\yourfileName.xlsx")

cursor = connection.cursor()
sql = "insert into [Sheet1$] (col1,col2) values (val1,val2)"
cursor.execute(sql)